Jailed for a crime he didn't commit,
Harlem-born Carl Lucas agreed to undergo an experimental treatment designed to
replicate the effects of the Super-Soldier serum that produced Captain America.
As a result of the treatment, Carl's skin became unbreakable, and his strength
was amplified to superhuman levels. Now bulletproof and able to punch through
four-inch-thick steel, Carl took on the name Luke Cage and became a hero
dedicated to keeping his streets safe alongside his partner and friend Iron
Fist. Born into privilege, Danny Rand's life was forever changed when his
parents were killed by a family friend. Fueled by a desire for revenge, Danny
traveled to the mystical city of K'un-Lun. There, he trained under Lei Kung the
Thunderer who turned him into a living weapon. As a final test, Danny
challenged the dragon Shou-Lao and defeated him. Plunging his fist into the
dragon's molten heart, Danny became the bearer of the Iron Fist. After avenging
his parents, Danny turned his life to serving others, becoming inseparable
friends with Luke Cage as a Defender, Avenger, and a Hero for Hire.